Mobile Communication Multiple Choice Questions with Answers

Questions

61 While handoffs, the termination of call may be avoided by

A Providing Guard channel

B Queuing of handoffs

C Both a & b

D None of the above

View Answer

Answer: Both a & b

62 Dwell time is the time for

A A call within the cell

B Hand off

C Waiting for channel allocation

D None of the above

View Answer

Answer: A call within the cell

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63 Dwell time depends upon

A Interference

B Distance between the subscriber and the base station

C Propagation of call

D All of the above

View Answer

Answer: All of the above

64 In Mobile Assisted Handoff (MAHO), the handoff takes place when

A The power received by the mobile station from other base station is more than the serving base station

B The channel allocated is not available

C The mobile station has no signal

D All of the above

View Answer

Answer: The power received by the mobile station from other base station is more than the serving base station

65 Trunking in a cellular network refers to

A Termination of a call

B Spectrum unavailability

C Accommodating large number of users in limited spectrum

D All of the above

View Answer

Answer: Accommodating large number of users in limited spectrum

66 Umbrella cell approach

A Uses large and small cells

B Uses different antenna heights

C Is used for high speed users with large coverage area and low speed users with small coverage area

D All of the above

View Answer

Answer: All of the above

67 Interference in frequency bands may lead to

A Blocked calls

B Cross talk

C Missed calls

D All of the above

View Answer

Answer: All of the above

68 Grade of service refers to

A Accommodating large number of users in limited spectrum

B Ability of a user to access trunked system during busy hour

C Two calls in progress in nearby mobile stations

D High speed users with large coverage area

View Answer

Answer: Ability of a user to access trunked system during busy hour

69 Traffic intensity is expressed in

A Erlangs

B λ/ sec

C Erlangs /MHz /km2

D dB/sec

View Answer

Answer: Erlangs

70 The techniques used to improve the capacity of cellular systems are

A Coverage zone approach

B Splitting

C Sectoring

D All of the above

View Answer

Answer: All of the above

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